Example usage for java.lang StringBuffer StringBuffer

Introduction

In this page you can find the example usage for java.lang StringBuffer StringBuffer.

Prototype

@HotSpotIntrinsicCandidate
public StringBuffer()

Source Link

Document

Constructs a string buffer with no characters in it and an initial capacity of 16 characters.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    File f = new File("C:\\test.txt");
    FileReader fr = new FileReader(f);
    BufferedReader br = new BufferedReader(fr);

    StringBuffer sb = new StringBuffer();
    String eachLine = br.readLine();

    while (eachLine != null) {
        sb.append(eachLine);//  w w w . j  av  a 2  s .c  o  m
        sb.append("\n");
        eachLine = br.readLine();
    }
    System.out.println(sb.toString());
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {

    String hostname = "tock.usno.navy.mil";

    Socket theSocket = new Socket(hostname, 13);
    InputStream timeStream = theSocket.getInputStream();
    StringBuffer time = new StringBuffer();
    int c;/*from  w w w. j  ava  2s. co  m*/
    while ((c = timeStream.read()) != -1)
        time.append((char) c);
    String timeString = time.toString().trim();
    System.out.println("It is " + timeString + " at " + hostname);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    File f = new File("hello.txt");
    FileReader fr = new FileReader(f);

    char[] c = new char[(int) f.length()];
    char[] cnew = new char[(int) f.length()];
    StringBuffer sbuf = new StringBuffer();
    fr.read(c, 0, (int) f.length());

    int len = (int) f.length();

    for (int i = 0, j = len - 1; i < len; i++, j--) {
        cnew[i] = c[j];/*from   ww w  . j a  v  a 2s  . c  o m*/
        sbuf.append(cnew[i]);
    }

    System.out.println(sbuf.toString());
    fr.close();

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    File f = new File("Main.java");
    FileReader fr = new FileReader(f);

    char[] c = new char[(int) f.length()];
    char[] cnew = new char[(int) f.length()];
    StringBuffer sbuf = new StringBuffer();
    fr.read(c, 0, (int) f.length());

    int len = (int) f.length();

    for (int i = 0, j = len - 1; i < len; i++, j--) {
        cnew[i] = c[j];//from   ww w. j av  a2s  . c  om
        sbuf.append(cnew[i]);
    }

    System.out.println(sbuf.toString());
    fr.close();

}

From source file:MainClass.java

public static void main(String[] av) {
    String joke = "dog " + "dogs";
    String regEx = "dog";

    Pattern doggone = Pattern.compile(regEx);
    Matcher m = doggone.matcher(joke);

    StringBuffer newJoke = new StringBuffer();
    while (m.find()) {
        m.appendReplacement(newJoke, "goat");
    }/*w  w  w .  ja va  2  s.co m*/
    m.appendTail(newJoke);
    System.out.println(newJoke.toString());
}

From source file:Main.java

public static void main(String args[]) {
    int days = 1;
    int month = 1;
    int year = 2001;
    SimpleDateFormat sdf = new SimpleDateFormat("E dd-MM-yyyy G");
    StringBuffer buf = new StringBuffer();
    Calendar cal = new GregorianCalendar();
    cal.set(year, month - 1, days);/*  ww  w . j  av  a2  s.c  o m*/
    sdf.format(cal.getTime(), buf, new FieldPosition(10));
    System.out.println(buf.toString());
}

From source file:Main.java

public static void main(String[] argv) throws Exception {

    CharSequence inputStr = "ab12 cd efg34 123";
    String patternStr = "([a-zA-Z]+[0-9]+)";

    Pattern pattern = Pattern.compile(patternStr);
    Matcher matcher = pattern.matcher(inputStr);

    StringBuffer buf = new StringBuffer();
    boolean found = false;
    while ((found = matcher.find())) {
        String replaceStr = matcher.group();
        matcher.appendReplacement(buf, "found<" + replaceStr + ">");
    }/*from w ww .  j a v a  2 s. c  o m*/
    matcher.appendTail(buf);

    String result = buf.toString();
    System.out.println(result);
}

From source file:HelloPeopleJDOM.java

public static void main(String[] args) throws Exception {
    SAXBuilder builder = new SAXBuilder();
    Document doc = builder.build("./src/data.xml");

    StringBuffer output = new StringBuffer();

    // create the basic HTML output
    output.append("<html>\n").append("<head>\n<title>\nPerson List</title>\n</head>\n").append("<body>\n")
            .append("<ul>\n");

    Iterator itr = doc.getRootElement().getChildren().iterator();

    while (itr.hasNext()) {
        Element elem = (Element) itr.next();

        output.append("<li>");
        output.append(elem.getAttribute("lastName").getValue());
        output.append(", ");
        output.append(elem.getAttribute("firstName").getValue());
        output.append("</li>\n");
    }/*from  w ww .j a v  a 2s  .c om*/

    // create the end of the HTML output
    output.append("</ul>\n</body>\n</html>");

    System.out.println(output.toString());
}

From source file:Main.java

public static void main(String[] args) throws Exception {

    URL google = new URL("http://www.google.com/");
    URLConnection googleConnection = google.openConnection();
    DataInputStream dis = new DataInputStream(googleConnection.getInputStream());
    StringBuffer inputLine = new StringBuffer();
    String tmp;//from w  w  w. jav a2  s .  c o m
    while ((tmp = dis.readLine()) != null) {
        inputLine.append(tmp);
        System.out.println(tmp);
    }
    // use inputLine.toString(); here it would have whole source
    dis.close();
}

From source file:MainClass.java

public static void main(String args[]) {
    String joke = "dog day daughter daut did do done date";
    String regEx = "d";

    Pattern doggone = Pattern.compile(regEx);
    Matcher m = doggone.matcher(joke);

    StringBuffer newJoke = new StringBuffer();
    while (m.find())
        m.appendReplacement(newJoke, "g");
    m.appendTail(newJoke);/*from w w w  .jav a  2s .c o m*/
    System.out.println(newJoke.toString());
}